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Kernel: Make sys$anon_create() fail if size == 0

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An empty anonymous file is useless since it cannot be resized anyway,
so let's not support creating it.
This commit is contained in:
Andreas Kling 2021-01-25 09:35:25 +01:00
commit f5d916a881
Notes: sideshowbarker 2024-07-18 22:53:14 +09:00
1 changed files with 3 additions and 0 deletions
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3
Kernel/Syscalls/anon_create.cpp
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@ -35,6 +35,9 @@ int Process::sys$anon_create(size_t size, int options)
{ {
REQUIRE_PROMISE(stdio); REQUIRE_PROMISE(stdio);
if (!size)
return -EINVAL;
if (size % PAGE_SIZE) if (size % PAGE_SIZE)
return -EINVAL; return -EINVAL;